Wright Aeronautical Wright Gipsy
The Wright Gipsy features nickel cast iron cylinders. Detachable aluminium alloy cylinder heads have on intake and one exhausr each, and extruded bronze valve seats shrunk into the heads.
The one piece crankshaft has 5 bearings. Tulip valves were of special valve steel. Pistons are aluminium alloy, slipper type. Hot spot effect secured by passing that portion of the intake manifold immediately above the carburettor through an exhaust manifold jacket.
Equipment included was a cylinder cowling, exhaust manifold, ignition switch, tool kit and instruction book.
Accessories available at extra cost were Eclipse hand starter, propeller hub, flange and bolt.
Type: 4 cylinder, air cooled, vertical inline
Military Rating: 85 hp at 1900 rpm
Commercial Rating: 100 hp at 2100 rpm
Displacement: 318 cu.in
Compression ratio: 5-1
Bore: 4 1/2 in
Stroke: 5 in
Length incl. hub: 45 1/4 in
Width btwn mounts: 11 11/16 in
Weight: 285 lb
Fuel consumption: not more than .55 lb/hp/hr
Oil consumption: not more than .010 lb/hp/hr
Lubrication: Gear pump pressure (no scavenger)
Ignition: Scintilla, Dual, PN-4-d, Impulse start on one
Carburation: Stromberg Type NA-R-4A
Spark plugs: 2 per cylinder